Manpages - SDL_SetModState.3
Table of Contents
  
NAME
SDL_SetModState - Set the current key modifier state
SYNOPSIS
#include “SDL.h”
void SDL_SetModState*(*SDLMod modstate);
DESCRIPTION
The inverse of SDL_GetModState, SDL_SetModState allows you to impose modifier key states on your application.
Simply pass your desired modifier states into modstate. This value my be a logical OR’d combination of the following:
  typedef enum {
    KMOD_NONE  = 0x0000,
    KMOD_LSHIFT= 0x0001,
    KMOD_RSHIFT= 0x0002,
    KMOD_LCTRL = 0x0040,
    KMOD_RCTRL = 0x0080,
    KMOD_LALT  = 0x0100,
    KMOD_RALT  = 0x0200,
    KMOD_LMETA = 0x0400,
    KMOD_RMETA = 0x0800,
    KMOD_NUM   = 0x1000,
    KMOD_CAPS  = 0x2000,
    KMOD_MODE  = 0x4000,
  } SDLMod;
SEE ALSO
SDL_GetModState